Convertible scale



FIG. 1 is a front right perspective view of a convertible scale hereofin a closed position, the left side being a mirror image thereof;

FIG. 2 is a front right perspective view of a convertible scale hereofin an open position, the left side being a mirror image thereof; and,

FIG. 3 is a right side perspective view of a convertible scale hereof ina closed position, the left side being a mirror image thereof.

The ornamental design for a convertible scale, as shown and described. 